Home / 8,687.80-13,033.28-2,844.72

Finding the Fourth Proportional to 8,687.80, 13,033.28 and 2,844.72

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Solution

The fourth proportional to 8,687.80, 13,033.28 and 2,844.72 is: 4,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.80 : 13,033.28 = 2,844.72 : x
  2. Step 2: Convert to fraction form
    8,687.80/13,033.28 = 2,844.72/x
  3. Step 3: Cross multiply
    8,687.80x = 13,033.28 × 2,844.72
  4. Step 4: Simplify right side
    8,687.80x = 37,076,032.28
  5. Step 5: Solve for x
    x = 37,076,032.28/8,687.80
  6. Step 6: Final answer
    x = 4,267.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.